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Finding the Fourth Proportional to 70,127.68, 105,192.45 and 23,380.57

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Solution

The fourth proportional to 70,127.68, 105,192.45 and 23,380.57 is: 35,071.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,127.68 : 105,192.45 = 23,380.57 : x
  2. Step 2: Convert to fraction form
    70,127.68/105,192.45 = 23,380.57/x
  3. Step 3: Cross multiply
    70,127.68x = 105,192.45 × 23,380.57
  4. Step 4: Simplify right side
    70,127.68x = 2,459,459,440.70
  5. Step 5: Solve for x
    x = 2,459,459,440.70/70,127.68
  6. Step 6: Final answer
    x = 35,071.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.